Abstract
In this study we make clear the dynamic characteristics of 3-DOF vibration isolator supported by air suspensions with slit restrictions and reservoir tanks. We obtain the dynamical mode and the transfer function of 3-DOF vibration isolator. More over, we describe an arbitrary oscillating mode of foundation by using a position of a rotating axis of a rotating oscillating mode. In order to minimize resonance amplitude T, the equivalent damping ratio ζ which corresponds to the restriction coefficient of slit restriction has to be chosen in order to equalize T in case of β→0 and T in case of β→∞.
